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0=10x-0.83^2-13
We move all terms to the left:
0-(10x-0.83^2-13)=0
We add all the numbers together, and all the variables
-(10x-0.83^2-13)=0
We get rid of parentheses
-10x+13+0.83^2=0
We add all the numbers together, and all the variables
-10x+13.6889=0
We move all terms containing x to the left, all other terms to the right
-10x=-13.6889
x=-13.6889/-10
x=1+2.1842027355083/5.9210136775416
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